TOMAL, M. A new time-varying method for club convergence analysis . Economics and Business Letters, [S. l.], v. 13, n. 4, p. 194–202, 2024. DOI: 10.17811/ebl.13.4.2024.194-202. Disponível em: http://156.35.33.188/index.php/EBL/article/view/21204. Acesso em: 17 sep. 2026.